The Wild Dog Mountains
Alex Allchin

Alex Allchin

I work with data and maps in Sydney, and build small web tools about NSW. Bush tracks, trains, payphones and the price of a beer.

Now

Thinking about Lime bike data and how to connect people for coffees.

Things I've made

Payphones

Payphone Tag — capture Telstra payphones around Australia by calling them. As seen on the Today Show, 9News, ABC radio and Hackaday (press).

FreePhone — find the nearest free public phone and give it a call.

Maps & the bush

Bushwalking Maps — the most comprehensive collection of maps and data for bushwalking in NSW.

Simple Topo — a simple topo web map for NSW.

NPWS Alerts — NSW National Parks alerts and closures.

Jacarandas near me — find a jacaranda near you in Sydney.

Live data

Smooth Trains — every train on the Sydney network, moving live.

GotFuel? — NSW fuel outage tracker.

ASX System Status Alerter — alerts when the ASX has an outage.

Pubs, beer & odds and ends

The Occy — is happy hour on at the Occidental Hotel?

Cheap Beers — the cheapest beers, per standard drink.

Aussie Age Guesser — guess the age of everyday Aussies.

Zero Hour Soundboard — for C&C Generals: Zero Hour.

Press & talks

Building Payphone Tag — my talk at Newcastle GeoRabble, April 2026

Interviewed about Payphone Tag — Today Show, July 2026

The real-world payphone game taking over Australia’s streets — 9News, June 2026

Payphone Tag explained — 9News on TikTok

Who’s calling? Thousands are chasing payphones across Australia — ABC Melbourne Breakfast

What is Payphone Tag? The street game turning our payphones into a national competition — Telstra Exchange, May 2026

Spot the payphone: here’s how to play the new road trip game — Telstra Exchange

How a simple payphone game is helping Tenterfield reconnect — Northern Daily Leader, May 2026

The revival of the payphone in Chapman Valley — Geraldton Guardian

Payphone Tag is Australia’s new national sport — Hackaday, April 2026

Australia’s ‘Payphone Tag’ game is an excellent use of public infrastructure — Aftermath

What is Payphone Tag? The ultimate screen-free game for explorer nerds — EFTM, April 2026

New Apple CEO and Payphone Tag — come play! — The EFTM Podcast

Someone made Pokémon Go for Telstra payphones — WhistleOut

Call me maybe: Payphone Tag is making Aussie payphones cool again — Travel Massive

weeklyOSM 823 — weeklyOSM

Show HN: Payphone Tag — Hacker News

Elsewhere

I walk with Sydney Bush Walkers and turn up at GeoRabble. I read Simon Willison, Mark Litwintschik, ssp.sh and the Bushwalk.com forum.